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Microsoft Word C041101e doc Reference number ISO 11890 1 2007(E) © ISO 2007 INTERNATIONAL STANDARD ISO 11890 1 Second edition 2007 07 01 Paints and varnishes — Determination of volatile organic compou[.]
INTERNATIONAL STANDARD ISO 11890-1 Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Second edition 2007-07-01 Paints and varnishes — Determination of volatile organic compound (VOC) content — Part 1: Difference method Peintures et vernis — Détermination de la teneur en composés organiques volatils (COV) — Partie 1: Méthode par différence Reference number ISO 11890-1:2007(E) © ISO 2007 ISO 11890-1:2007(E) PDF disclaimer This PDF file may contain embedded typefaces In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy The ISO Central Secretariat accepts no liability in this area Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Adobe is a trademark of Adobe Systems Incorporated Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing Every care has been taken to ensure that the file is suitable for use by ISO member bodies In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHT PROTECTED DOCUMENT © ISO 2007 All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester ISO copyright office Case postale 56 • CH-1211 Geneva 20 Tel + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland ii © ISO 2007 – All rights reserved ISO 11890-1:2007(E) Contents Page Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Foreword iv Scope Normative references Terms and definitions Principle Required supplementary information Sampling Procedure Calculation Expression of results 10 Precision 11 Test report Annex A (normative) Required supplementary information Bibliography © ISO 2007 – All rights reserved iii ISO 11890-1:2007(E) Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies) The work of preparing International Standards is normally carried out through ISO technical committees Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part The main task of technical committees is to prepare International Standards Draft International Standards adopted by the technical committees are circulated to the member bodies for voting Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights ISO shall not be held responsible for identifying any or all such patent rights ISO 11890-1 was prepared by Technical Committee ISO/TC 35, Paints and varnishes This second edition cancels and replaces the first edition (ISO 11890-1:2000), which has been technically revised The main change is that, in order to allow the method to be used for multi-component systems as well as single-component systems, the test portion preparation procedures for the determination of the nonvolatile-matter content of each of these two types of system has been included in Subclause 7.4 ISO 11890 consists of the following parts, under the general title Paints and varnishes — Determination of volatile organic compound (VOC) content: ⎯ Part 1: Difference method ⎯ Part 2: Gas-chromatographic method iv © ISO 2007 – All rights reserved INTERNATIONAL STANDARD ISO 11890-1:2007(E) Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Paints and varnishes — Determination of volatile organic compound (VOC) content — Part 1: Difference method Scope This part of ISO 11890 is one of a series of standards dealing with the sampling and testing of paints, varnishes and related products It specifies a method for the determination of the volatile organic compound (VOC) content of paints, varnishes and their raw materials This part may be used where the expected VOC content is greater than 15 % by mass When the expected VOC content is greater than 0,1 % by mass and less than 15 % by mass, ISO 11890-2 should be employed This method assumes that the volatile matter is either water or organic However, other volatile inorganic compounds can be present and might need to be quantified by another suitable method and allowed for in the calculations Normative references The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies ISO 760, Determination of water — Karl Fischer method (General method) ISO 1513, Paints and varnishes — Examination and preparation of samples for testing ISO 2811-1, Paints and varnishes — Determination of density — Part 1: Pyknometer method ISO 2811-2, Paints and varnishes — Determination of density — Part 2: Immersed body (plummet) method ISO 2811-3, Paints and varnishes — Determination of density — Part 3: Oscillation method ISO 2811-4, Paints and varnishes — Determination of density — Part 4: Pressure cup method ISO 3251:2003, Paints, varnishes and plastics — Determination of non-volatile-matter content ISO 3270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and testing ISO 11890-2, Paints and varnishes — Determination of volatile organic compound (VOC) content — Part 2: Gas-chromatographic method ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling © ISO 2007 – All rights reserved ISO 11890-1:2007(E) Terms and definitions Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 For the purposes of this document, the following terms and definitions apply 3.1 volatile organic compound VOC any organic liquid and/or solid that evaporates spontaneously at the prevailing temperature and pressure of the atmosphere with which it is in contact NOTE As to correct usage of the term VOC in the field of coating materials, see volatile organic compound content (VOC content) NOTE Under U.S government legislation, the term VOC is restricted solely to those compounds that are photochemically active in the atmosphere (see ASTM D 3960) Any other compound is defined as being an exempt compound [ISO 4618:2006] NOTE Under European legislation, EU Directive 2004/42/EC, the term VOC refers to volatile organic compounds with boiling points up to 250 °C, measured at a standard pressure of 101,3 kPa 3.2 volatile organic compound content VOC content mass of the volatile organic compounds present in a coating material, as determined under specified conditions NOTE The properties and the amounts of the compounds to be taken into account will depend on the field of application of the coating material For each field of application, the limiting values and the methods of determination or calculation are stipulated by regulations or by agreement [ISO 4618:2006] NOTE If the term VOC refers to compounds with a defined maximum boiling point (see Note to 3.1), the compounds considered to be part of the VOC content are those with boiling points below that limit and compounds with higher boiling points are considered to be non-volatile organic compounds 3.3 exempt compound organic compound that does not participate in atmospheric photochemical reactions NOTE See Notes and to 3.1 3.4 ready for use state of a product when it is mixed in accordance with the manufacturer's instructions in the correct proportions and thinned, if required, using the correct thinners so that it is ready for application by the approved method Principle After preparation of the sample, the non-volatile matter content is determined in accordance with ISO 3251, and the water content is determined using a titration technique employing Karl Fischer reagent in accordance with ISO 760 The contents of exempt compounds, if applicable, are then determined using the method specified in ISO 11890-2 The VOC content of the sample is then calculated © ISO 2007 – All rights reserved ISO 11890-1:2007(E) Required supplementary information For any particular application, the test method specified in this part of ISO 11890 shall be completed by supplementary information The items of supplementary information are given in Annex A Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Sampling Take a representative sample of the product to be tested (or of each product in the case of a multi-coat system) as specified in ISO 15528 Examine and prepare each sample for testing, as specified in ISO 1513, preparing the final sample for testing in the “ready for use” state 7.1 Procedure Number of determinations and general test conditions Carry out all tests in duplicate at (23 ± 2) °C and a relative humidity of (50 ± 5) % unless otherwise agreed (see ISO 3270) 7.2 Determination of parameters Determine the parameters required by the calculation (see 8.2 to 8.5) as specified in 7.3 to 7.6 Some may be determined by difference, depending on the compounds present in the sample 7.3 Density If required by the calculation (see 8.3 to 8.5), determine the density of the sample using the part of ISO 2811 which will give the best precision for the type of sample concerned Determine the density at 23 °C 7.4 Non-volatile-matter content For single-component products, weigh test portions of the appropriate size (see Table in ISO 3251:2003) into dishes as specified in ISO 3251 Proceed in accordance with ISO 3251 For multi-component systems, thoroughly mix the components in accordance with the manufacturer’s instructions Immediately weigh test portions of the appropriate size (see Table in ISO 3251:2003) into dishes as specified in ISO 3251 Allow the test portions to stand in the dishes for h at (23 ± 2) °C and atmospheric pressure Then place the dishes in the oven and proceed in accordance with ISO 3251 If any unusual decomposition or degradation occurs during heating, periods of time and/or temperatures different from those given in ISO 3251 may be used by agreement between the interested parties 7.5 Water content Determine the water content, as a percentage by mass, by the method given in ISO 760, selecting the reagents so that there will be no interference from the compounds contained in the sample If the compounds are not known, then determine them qualitatively, e.g by the method given in ISO 11890-2 NOTE Typical compounds likely to cause interference are ketones and aldehydes Reagent manufacturers normally publish literature for guidance on correct reagent selection NOTE If the product to be tested is well characterized and known not to contain water, it is not necessary to determine the water content, and the water content can be assumed to be zero © ISO 2007 – All rights reserved ISO 11890-1:2007(E) 7.6 Exempt compounds (only where national legislation applies) 7.6.1 If the organic compounds contained in the sample are not known, then determine them qualitatively, e.g by the method specified in ISO 11890-2 Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 7.6.2 Determine the contents of the exempt compounds contained in the sample using the method specified in ISO 11890-2 7.6.3 Determine the densities of the exempt compounds by the method given in 7.3, or by referring to published reference data 8.1 Calculation General Calculate the VOC content by the method specified in the referring specification If no particular method is specified, calculate the VOC content by method Method is the preferred calculation method as the precision is better since it does not involve the determination of density, which introduces the potential for additional errors 8.2 Method 1: VOC content, as a percentage by mass, of the product “ready for use” VOC = 100 − NV − w w (1) where 8.3 VOC is the VOC content, as a percentage by mass, of the product “ready for use”; NV is the non-volatile-matter content, as a percentage by mass (see 7.4); ww is the water content, as a percentage by mass (see 7.5) Method 2: VOC content, in grams per litre, of the product “ready for use” VOC = (100 − NV − w w ) × ρ s × 10 (2) where VOC is the VOC content, in grams per litre, of the product “ready for use”; NV is the non-volatile-matter content, as a percentage by mass (see 7.4); ww is the water content, as a percentage by mass (see 7.5); ρs is the density, in grams per millilitre, of the sample at 23 °C (see 7.3); 10 is a conversion factor to convert to grams per litre © ISO 2007 – All rights reserved ISO 11890-1:2007(E) 8.4 Method 3: VOC content, in grams per litre, of the product “ready for use” less water Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 ⎛ ⎜ 100 − NV − w w VOC lw = ⎜ ww ⎜ ⎜ 100 − ρ s × ρ w ⎝ ⎞ ⎟ ⎟ × ρ s × 000 ⎟ ⎟ ⎠ (3) where VOClw is the VOC content, in grams per litre, of the product “ready for use” less water; NV is the non-volatile-matter content, as a percentage by mass (see 7.4); ww is the water content, as a percentage by mass (see 7.5); ρs is the density, in grams per millilitre, of the sample at 23 °C (see 7.3); ρw is the density, in grams per millilitre, of water at 23 °C (ρw = 0,997 537 g/ml at 23 °C); 000 is a conversion factor to convert grams per millilitre to grams per litre 8.5 Method 4: VOC content, in grams per litre, of the product “ready for use” less water and less exempt compounds (only required if national legislation applies) i =n ⎛ ⎜ 100 − NV − ww − weci ⎜ i =1 =⎜ i=n weci ww ⎜ ρ ρ 100 − × − × s s ⎜ ρw ρ i =1 eci ⎝ ∑ VOC lwe ∑ ⎞ ⎟ ⎟ ⎟ × ρ s × 000 ⎟ ⎟ ⎠ (4) where VOClwe is the VOC content, in grams per litre, of the product “ready for use” less water and less exempt compounds; NV is the non-volatile-matter content, as a percentage by mass, of the sample (see 7.4); ww is the water content, as a percentage by mass (see 7.5); weci is the content, as a percentage by mass, of exempt compound i (see 7.6.2); ρs is the density, in grams per millilitre, of the sample at 23 °C (see 7.3); ρw is the density, in grams per millilitre, of water at 23 °C (ρw = 0,997 537 g/ml at 23 °C); ρeci is the density, in grams per millilitre, of exempt compound i (see 7.6.3); 000 is a conversion factor to convert grams per millilitre to grams per litre Expression of results If the two results (duplicates) differ by more than the value indicated in 10.2, repeat the procedure Calculate the mean of two valid results (replicates) and report the result to the nearest % © ISO 2007 – All rights reserved ISO 11890-1:2007(E) 10 Precision Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 10.1 General The precision of the test method was determined by interlaboratory testing in accordance with ISO 5725-1 and ISO 5725-2 Three different materials were tested by five to seven laboratories Some of the results were not considered when calculating the precision because they were not within the scope of the test method (see footnote “a” to Table 1) Their VOC content was below 15 % by mass but they were tested for a better comparison with the precision of ISO 11890-2 10.2 Repeatability limit r The repeatability limit r is the value below which the absolute difference between two single test results, each the mean of duplicates, obtained on identical material by one operator in one laboratory within a short interval of time using the standardized test method, may be expected to lie The repeatability for five repeated determinations made using this test method, expressed as the repeatability coefficient of variation CV(r), is % 10.3 Reproducibility limit R The reproducibility limit R is the value below which the absolute difference between two test results, each the mean of duplicates, obtained on identical material by operators in different laboratories using the standardized test method, may be expected to lie The reproducibility for this test method, expressed as the reproducibility coefficient of variation CV(R), is % Table — Results of interlaboratory testing Cathodic electrodeposition paint a Water-borne paint a Two-component varnish Number of laboratories Number of repeated determinations 5 Mean value (% by mass) 11,46 11,11 39,8 Reproducibility standard deviation 0,93 2,25 0,76 Reproducibility coefficient of variation 8,1 20,3 1,9 Repeatability standard deviation 0,54 0,29 0,23 Repeatability coefficient of variation 4,7 2,6 0,6 Parameter a Not considered for the precision because the mean value is below 15 % by mass © ISO 2007 – All rights reserved ISO 11890-1:2007(E) 11 Test report Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 The test report shall contain at least the following information: a) a reference to this part of ISO 11890 (ISO 11890-1); b) all details necessary for complete identification of the product tested (manufacturer, trade name, batch number, etc.); c) the items of supplementary information referred to in Annex A; d) a reference to the international or national standard, product specification or other document supplying the information referred to in c) above; e) the results of the test, as indicated in Clause 8, and the method of calculation used (8.2, 8.3, 8.4 or 8.5); f) any deviation from the test method specified; g) the date of the test © ISO 2007 – All rights reserved ISO 11890-1:2007(E) Annex A (normative) Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Required supplementary information The items of supplementary information listed in this annex shall be supplied as appropriate to enable the method to be carried out The information required should preferably be agreed between the interested parties and may be derived, in part or totally, from an international or national standard or other document related to the product under test a) The organic compound(s) to be determined (if known) b) The analytical method(s) to be used to identify these compounds c) Which of the organic compounds in a) are exempt compounds (see 7.6) d) The method of calculation to be used (see Clause 8) © ISO 2007 – All rights reserved ISO 11890-1:2007(E) Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 Bibliography [1] ISO 4618:2006, Paints and varnishes — Terms and definitions [2] ISO 5725-1, Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions [3] ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method [4] ASTM D 3960, Standard Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings © ISO 2007 – All rights reserved Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 This page is intentionally blank Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 This page is intentionally blank Externe elektronische Auslegestelle-Beuth-SNV shop Schweizer.Normen-Vereinigung ein Joint Venture mit TFV-KdNr.6950278-ID.1DDD5307B8B0320255A72C770351D6B9.3-2008-05-29 14:10:18 ISO 11890-1:2007(E) Price based on pages ICS 87.040 © ISO 2007 – All rights reserved